KR100936160B1 - Air-cell packing materials with air bypass line and the fabrication method thereof - Google Patents

Abstract

PURPOSE: A packing material for filing with an air injection path in which a bypass is formed and a manufacturing method thereof are provided to prevent an outer shape from damaging by discharging over-pressurized air to the outside. CONSTITUTION: A packing material for filing with an air injection path in which a bypass is formed comprises the following: a lower outer cover(100); a lower inner cover(200) in which a different shape unit is formed; an upper inner cover(210) with a plurality of air flowing paths(220) which is partially combined to the lower inner cover; a plurality of air cells(120) with a plurality of the air flowing paths; and an upper outer cover(110) forming the air injection paths connected to the air flowing paths.

Description

Buffer packaging having an air injection path with a bypass formed therein and a manufacturing method thereof {Air-cell packing materials with air bypass line and the fabrication method

The present invention relates to a cushioning packaging material having a bypass-formed air injection path and a method of manufacturing the same, and more particularly, to an air inflow path into which air is injected from the outside and air introduced into the air cell. A buffer packaging material configured to form a bypass communicating with the outside on one side of the passage between the furnaces to prevent excessive injection of air into a specific air cell due to an increase in pressure in the air injection path, and to prevent deformation or breakage; It relates to a manufacturing method.

In general, when packaging a product such as an electronic product in a box, a cushioning material such as styrofoam is mainly used to prevent damage and damage to the product due to external impact or internal vibration.

However, because these buffers are very large, they prevent the efficient use of space when carrying out logistics activities such as storage, loading, and transportation, while increasing costs, and because they are not recycled and are disposed of as they are used, they act as a source of pollution. It is causing problems such as

Therefore, in recent years, a plurality of plastic films or sheets are fused to form an air cell therein, and a cushioning packing material in which the air is filled in the air cell and expanded is used to replace styrofoam.

Such a cushioning packaging material is interposed between a pair of envelopes, which form a plurality of air induction paths using a release band, between a pair of envelopes, and each of the pair of envelopes and a pair of endothelials are fused to each other to induce one air induction. It is formed by forming a plurality of air cells having a furnace, is formed by fusion and is used by inflating a plurality of air cells by injecting air into the air injection passage communicating with the plurality of air induction.

Looking at this in more detail, the overlapping upper and lower outer shell and the upper and lower endothelial fusion in the longitudinal direction at regular intervals to form a longitudinal fusion. Subsequently, the upper and lower sheaths of the rear end portion are fused in the transverse direction to form the rear transverse fusion welds, and the upper and lower outer sheaths of the front end portion and the upper and lower endothelial are integrally fused in the transverse direction to form the shear transverse fusion welds. At this time, a release part is formed in the transverse direction between the upper endothelial and the lower endothelial portion of the shear transverse fusion fusion part where the end of the longitudinal fusion part is in contact, and the part where the release band is formed at the time of fusion is injected through the air injection passage. The air to be injected is introduced into the air cell composed of the upper and lower sheaths at regular intervals through an air induction path formed between the upper and lower endothelial cells as the passage.

Through such a configuration, when air is injected through the air injection path, the air is filled into the air cell via the air induction path. In addition, when enough air is injected into each air cell, the upper endothelial and the lower endothelial contact with each other by the pressure of the air filled in the air cell, and the air induction is blocked, so that the air inside the air cell is not discharged to the outside.

However, the buffer packaging material according to the prior art, in the process of injecting air into a plurality of air cells at the same time through the air inlet, because the outlet of the injected air is completely sealed, the internal pressure of the air inlet is excessively Increasingly, excessive air is injected into a specific air cell. As a result, the internal pressure of a specific air cell is increased to deform and expand the outer shell forming the air cell, making it difficult to insert the product into a box of a certain shape, or the outer shell or the fusion portion may be ruptured and thus lose the cushioning function. There is a problem.

In order to solve the above problems, the present invention forms a bypass communicating with the outside on one side of a passage between an air injection path into which air is injected from the outside and an air induction path into which the injected air is introduced into the air cell. To provide a cushioning packaging material and a method of manufacturing the same having an air injection passage formed with a bypass to prevent deformation or breakage due to excessive injection of air into a specific air cell due to increased pressure in the air injection passage There is this.

A cushioning packaging material having an air inlet passage formed with a bypass according to the present invention includes a lower outer shell; A lower endothelial overlapping an upper portion of the lower outer shell, wherein a upper end of the lower outer shell has a release band formed transversely along a shear edge; An upper endothelial superimposed on an upper portion of the lower endothelial and partially fused with the lower endothelial to form a plurality of air induction paths; Overlying the upper endothelial and the lower outer shell, and partially fused with the upper endothelial, lower endothelial and lower outer shell to form a plurality of air cells each having one of the plurality of air inlets therein, The upper shell to form an air injection passage in communication with the plurality of air induction passages on the front end of the plurality of air cells; configured to include, the release zone formed on the upper end of the lower end, the air injection passage and the The air injection path is formed at a position where the air inflow path is connected between air cells, and forms a passage for communicating the air injection path with the air induction path, and simultaneously connects the air injection path and each air induction path. Each air passage is in communication with each other and one end is configured to form a bypass configured to communicate with the outside, air injection When air is excessively introduced into the air by the injection characterized in that for adjusting the internal pressure of the air injected by discharging an internal over-pressure air to the air injection to the outside through the by-pass.

According to the present invention, there is provided a method for manufacturing a cushioning packaging material having an air inlet passage formed with a bypass, comprising: forming a release band along an upper end edge of a lower endothelial; Superimposing an upper endothelial on top of the lower endothelial and inserting it between an upper and lower sheaths; Inserting a release surface below the lower endothelial, and partially fusion of the upper outer shell, upper endothelial and lower endothelial to form a plurality of air induction paths; Removing the release surface; Partially fusion of the upper shell, the upper inner shell, the lower inner shell and the lower outer shell forms a plurality of air cells each having one air induction path therein, and the plurality of air induction paths in front of the plurality of air cells. Forming an air injection path communicating with the air injection path, the bypass being connected to the air injection path and the plurality of air induction paths, respectively, and having one end configured to communicate with the outside; And filling air into the plurality of air cells through the air induction path by injecting air into the air injection path, wherein the air is injected into the air injection path. When the pressure is excessively increased, the overpressure air is discharged to the outside through the bypass.

In addition, the method for manufacturing a cushioning packaging material having an air injection passage formed with a bypass according to the present invention, comprising: forming a pair of release zones by separating a predetermined distance along an upper center portion of the lower endothelial; Superimposing an upper endothelial on top of the lower endothelial and inserting between the upper and lower sheaths while cutting the central portion of the upper and lower endothelials; Inserting a release surface under the lower endothelial and partially fusion of the upper and lower cut endothelial and lower endothelial to form an air induction path between the cut upper and lower endothelial pairs, respectively. Making a step; Removing the release surface; Partially fusion of the upper shell, the upper inner shell, the lower inner shell and the lower outer shell forms a plurality of air cells each having one air induction path therein, and the plurality of air induction paths in front of the plurality of air cells. Forming an air injection path communicating with the air injection path, the bypass being connected to the air injection path and the plurality of air induction paths, respectively, and having one end configured to communicate with the outside; And filling air into the plurality of air cells through the air induction path by injecting air into the air injection path, wherein the air is injected into the air injection path. When the pressure is excessively increased, the overpressure air is discharged to the outside through the bypass.

A cushioning packaging material having a bypass-formed air inlet according to the present invention and a method for manufacturing the same, one side of a passage between an air injecting path into which air is injected from the outside and an air induction path into which the injected air is introduced into the air cell By forming a bypass in communication with the outside to discharge the over-pressure air flowing into the air cell to the outside there is an effect that the air is excessively injected into the specific air cell can be prevented from being deformed or damaged.

In addition, the method for manufacturing a cushioning packaging material having an air injection passage formed with a bypass according to the present invention, a pair of release units therein in a structure in which a plurality of air cells are formed to correspond to each other around the air injection passage. By inserting the centers of the upper and lower sheaths, which are formed side by side, just before insertion between the upper and lower sheaths, the release zone can be aligned at the exact position where the air cells are formed, thereby reducing the incidence of defects. .

EMBODIMENT OF THE INVENTION Hereinafter, although the Example of this invention is described in detail, this invention is not limited to a following example, unless the summary is exceeded.

1 is an exploded perspective view showing the configuration of a cushioning packaging having an air inlet passage formed with a bypass according to a first embodiment of the present invention, Figure 2 is a bypass formed air according to a first embodiment of the present invention Figure 3 is a perspective view showing the configuration of a buffer packaging material having an injection path, Figure 3 is a plan view showing the configuration of a buffer packaging material having an air injection passage formed with a bypass according to a first embodiment of the present invention, Figure 4 FIG. 1 is a plan view showing another configuration of a mold release band constituting a cushioning packaging material having an air injection path having a bypass according to the first embodiment of the present invention.

 In the drawing, a plurality of air cells are divided into each other and laterally spoken. However, in the following description, only one air cell will be described.

In the following description, 'top', 'bottom', 'front' and 'back' are terms selected based on the drawings to facilitate understanding of the present invention. That is, in the cushioning packaging material shown in Figure 1 according to the stacking order of the outer skin or the inner skin is referred to as the bottom, the top is the upper, as shown in Figure 3 the upper end of the air cell, the lower end of the air cell is the rear end Referred to as.

In the figure, the short width side of the air cell is in the transverse direction, the long width side is in the longitudinal direction, and the solid line shown inside the sheet paper represents a fusion formed on the upper surface, and the dotted line represents the fusion formed on the bottom surface.

1 to 3, a buffer packaging material having an air inlet passage formed with a bypass according to the present invention, but overlaps the upper portion of the lower sheath 100 and the lower sheath 100, the upper edge of the shear Along the lower endothelial 200 and the endothelial 200 is formed in the horizontal direction along the lower end 200, overlapping the upper end, partially fused with the lower endothelial 200 to form a plurality of air induction paths 220 Overlying the upper endothelial 210, the upper endothelial 210 and the lower outer shell 200, partially fused with the upper endothelial 210, lower endothelial 200 and the lower outer shell 100, a number of inside At the same time forming a plurality of air cells 120 each having one air induction path 220, the air injection path 140 in communication with the air induction path 220 on the front end side of the plurality of air cells 120 It is configured to include an upper sheath 110 forming a. At this time, the release band 300 formed at the upper end of the lower endothelial 200 is formed at a position where the air injection path 140 and the air induction path 220 are connected between the air injection path 140 and the air cell 120. To form a passage for communicating the air injection path 140 and the air induction path 220, and at the same time communicate the passages for communicating the air injection path 140 and each air induction path 220, respectively, It is configured to form a bypass 150 is configured to communicate with, the bypass 150 is formed so that when the internal pressure of the air injection path 140 is excessively increased, is discharged to the outside through a part of the over-pressure air By adjusting the pressure in the air injection passage 140.

To this end, the release stand 300 may be formed in a suitable pattern to meet the purpose, it will be described in detail with reference to the specific shape of the release stand 300 to be described later.

The lower sheath 100 and the upper sheath 110 are made of a film such as synthetic resin, it is configured in the same size.

The lower inner shell 200 and the upper inner shell 210 are also formed of a film such as synthetic resin, and are formed in the same length as the lower outer shell 100 and the upper outer shell 110 in the transverse direction, and the lower outer shell 100 in the longitudinal direction. ) And shorter than the upper sheath 110 is formed.

Release band 300 is a material having heat resistance, is formed along the upper edge of the upper end portion of the lower endothelial 200, it is formed in a pattern in which a large area 302 and a narrow area 304 is repeated.

In more detail, the release stand 300 connects the rectangular pattern 302 and the rectangular pattern 302 that form a passage at the connection portion between the air injection path 140 and the air induction path 220. As a result, the narrow band-shaped pattern 304 forming the bypass 150 is alternately formed. In the present exemplary embodiment, the wide area 302 of the release band 300 is formed as a pattern 302 having a rectangular shape, but may be formed in various shapes such as a circle, an ellipse, or a polygon, and the narrow area 304 may also have a straight shape or It may be formed in various shapes such as a curved shape.

Through this configuration, the release band 300 prevents the lower endothelial 200 and the upper endothelial 210 from being fused to each other when the upper and lower endothelial 210 and 200 are fused, and a rectangular pattern 302 is formed. In the position is formed a passage connecting the air inlet 140 and the air induction path 220, in the position where the narrow strip-shaped pattern 304 is formed in the air cell (one side of the passage between the air induction path 220) A bypass 150 for discharging the overpressure air introduced into the outside to the outside is formed.

The release band 300 may be formed in various forms. As shown in FIG. 4, perforations 306a and 306b of various shapes are formed at regular intervals in the release bands 300a and 300b formed in a bar shape. As a result, a passage is formed in the portions 302a and 302b where perforations are not formed to communicate the air injection path 140 and the air induction path 220, and the passages are communicated in the portions 302a and 302b in which a plurality of perforations are formed. The bypass 150 is formed, and the area of the bypass 150 may vary according to the size or number of perforations.

The above-described components form an air cell, an air injection path, an air induction path and a bypass through several fusion processes, and the configuration and manufacturing method thereof are as follows.

A release band 300 is formed along the upper shear edge of the lower endothelial 200, and the upper endothelial 210 is superimposed on the lower endothelial 200.

Next, the overlapping upper and lower inner shells 210 and 200 are inserted between the overlapping upper and lower outer shells 110 and 100. Next, a release surface (not shown) is inserted between the lower endothelial 200 and the lower outer shell 100, and the upper outer shell 110, the upper endothelial 210, and the lower endothelial 200 are closed by using a mold. The inner fusion unit 212 is formed by partially fusion at regular intervals in the direction to fusion the upper shell 110 and the upper endothelial 210 with each other, and at the same time, induce air between the upper endothelial 210 and the lower endothelial 200. The furnace 220 is formed. In this case, a passage for connecting the air injection path 140 and the air induction path 220 is formed at a portion where the release stand 300 is formed in the internal fusion unit 212.

After the air induction path 220 is formed, the release surface is removed, and the upper and lower outer shells 110 and 100 and the upper and lower inner shells 210 and 200 are moved to a mold for forming an air cell and an air injection path.

Subsequently, the upper and lower outer shells 110 and 100 and the upper and lower inner shells 210 and 200 are fused at the same time by using a mold for forming an air cell and an air injection path, so that the longitudinal fusion portions 112 are formed at regular intervals. And a first lateral fusion portion 114 connecting the rear end of the longitudinal fusion portion 112 to the rear end of the longitudinal fusion portion 112, and the longitudinal fusion portion at the front end of the longitudinal fusion portion 112. A second lateral fusion 116 is formed to connect the front end of 112. At this time, the front end of the longitudinal fusion portion 112 is a position spaced apart from the front edge of the upper and lower sheath 110, 100 so that the air injection path 140, that is, the position where the release band 300 is formed It is set to, the plurality of air cells 120 in the transverse direction through the longitudinal fusion portion 112, the first and second lateral fusion portion 114, 116 is spoken.

In addition, a third lateral fusion portion 118 is formed at the front end of the second lateral fusion portion 116, that is, along the upper edges of the upper and lower shells 110 and 100, and the third lateral fusion portion at the time of fusion. 118 forms an air injection path 140 together with the second transverse fusion 116. The air injection passage 140 formed as described above is formed with an air injection opening 142 opened to inject air to one side, and the other side may be closed by extending the longitudinal fusion portion 112 and may be closed. It may be formed into a shape and further fused and closed as necessary.

Through such a configuration, narrow band-shaped patterns connecting the passages to both sides of the passage connecting the air inlet 140 and the air induction path 220 to the rectangular pattern 302 portion of the release band 300 ( The bypass 150 is formed to communicate with the outside at the portion 304, and the bypass 150 may be introduced into the air cell 120 through the air induction path 220. When the overpressure is exhausted to the outside.

That is, the bypass 150 is an air injection path 140 and a plurality of air at a position where the air injection path 140 and the air induction path 220 is connected between the air injection path 140 and the air cell 120. The induction path 220 is connected through the passages communicating with each other, and one end is configured to communicate with the outside, when the air pressure in the air injection path 140 is excessively increased, the air cell 120 sufficiently filled with air In consideration of the fact that the air is continuously injected into the), by discharging the air injected into the air cell 120 through the bypass 150 to the outside is sufficiently filled by lowering the pressure in the air injection path 140 somewhat Since the air can be prevented from being injected into the air cell 120 having a higher pressure, it is possible to prevent the air 100 from being excessively injected into the specific air cell 120, thereby preventing the shell 100 and 110 from being deformed or damaged. It can prevent.

In addition, the bypass 150 formed as described above is excessively large when the width of the bypass 150 is discharged to the outside through a large amount of air than necessary to reduce the work efficiency, if the width is too small to the outside Since the amount of air discharged is extremely limited, the effect of reducing the overpressure inside the air injection path 140 is reduced, so it is necessary to adjust it to an appropriate size. As a result of forming and testing the bypass 150 in various sizes, it can be seen that the width of the bypass 150 is preferably formed in a size of 0.1% to 20% of the width of the air injection passage 140.

In addition, when the air is filled sufficiently inside the air cell 120 to stop the air injection, the upper and lower endothelial cells 210 and 200 forming the air induction path 220 by the internal air pressure are closed in an upper state. In close contact with the outer shell 110, the air inside the air cell 120 is not discharged to the outside.

5 is a view showing a state in which air is injected into the buffer packaging material having an air injection path formed with a bypass according to the first embodiment of the present invention, Figure 6 is a line A of the buffer packaging material shown in FIG. 7 is a cross-sectional view taken along line B-B 'of the cushioning packaging material shown in FIG. 5, and FIG. 8 is a cross-sectional view taken along line C-C' of the buffer packaging material shown in FIG. to be.

Referring to FIG. 5, when air is injected into the air inlet 140 through the air inlet 142, each air cell is passed through a plurality of air inlets 220 connected to the air inlet 140. When the air is injected into the inside of the 120 and the air cell 120 is sufficiently filled, the overpressured air is discharged to the outside through the bypass 150 formed at both sides of the air induction path 220.

Referring to FIG. 6, the air injected into the air injection path 140 is injected into the air cell 120 through the air inflow path 220, and thus the air cell 120 is expanded.

Referring to FIG. 7, there is shown a structure of the front end side of the air inlet path 220 connected to the air inlet path 140. The upper and lower endothelial cells 210 and 200 forming the air inlet path 220 are It is fused to each other shows the state in which the adjacent air inlet path 220 and the other is blocked.

Referring to FIG. 8, a passage connecting the air inlet passage 140 and the air inlet passage 220 to each other and a bypass 150 connecting the passage are in communication with each other, and the air passes through the bypass 150. It shows the state of being discharged to the outside.

In this configuration, the air injected into the air inlet 140 through the air inlet 142 is introduced into a plurality of air induction path 220 connected to the air inlet 140, the inside of the air cell 120 When the pressure of the excessively increased, by discharging the over-pressure air to the outside through the bypass 150, the air is excessively injected into the specific air cell 120 can be prevented from being deformed or damaged.

9 is a perspective view showing the configuration of a shock absorbing packaging material having an air injection path formed with a bypass according to a second embodiment of the present invention, and FIG. 10 is an air injection with a bypass formed according to a second embodiment of the present invention. An exploded perspective view showing a manufacturing process of a buffer packaging material having a furnace.

9 and 10, the buffer packaging material including the air injection path formed with the bypass according to the second embodiment of the present invention, the air across the center of the lower jacket 400 and the upper jacket 410 An injection passage 440 is formed, and a lower endothelial 500 and an upper endothelial 510 in which a plurality of air induction passages 520 are formed in a shape corresponding to each other on the upper and lower portions of the air injection passage 440 are inserted, respectively. An air cell 420 having one air induction path 520 is formed, and is configured in the same manner as the above-described first embodiment except that the air cells 420 are configured to be folded through the air injection path 440. Here too, a rectangular pattern for forming a passage connecting the air inlet 440 and the air induction route 520 on the lower endothelial 500, and a narrow band shape forming a bypass 450 for connecting the passage. A release band 600 is formed in which a pattern of alternately is formed.

The packaging cushioning material having such a configuration may be formed through the same method as in the above-described first embodiment, and forms a pair of release stages 600 that are spaced a predetermined distance across the central portion of the lower endothelial 500, and In the process of interposing the upper and lower inner shells 510 and 500 between the lower outer shells 410 and 400, immediately before inserting the upper and lower inner shells 510 and 500 between the upper and lower outer shells 410 and 400. The process of inserting while cutting between the center of the upper and lower endothelial (510, 500), that is between the pair of release stage 600 is added.

As described above, the reason for inserting the upper and lower endothelial 510 and 500 while cutting the central portion of the upper and lower endothelial 510 and 500 immediately before inserting the upper and lower endothelial 510 and 500 between the upper and lower outer shell 410 and 400 is that This is to more accurately perform the alignment between the air induction path 520 formed between the inner shell 510 and 500 and the air cell 420 formed between the upper and lower outer shells 410 and 400.

That is, the lower endothelial 500 is provided with a pair of release stages 600 spaced apart a predetermined distance along the upper center, as shown in Figure 10 the upper and lower inner shell (510, 500) the center of the upper and lower outer shell Difference between the degree of tension of the endothelial or the outer sheath during the tensile insertion process of the upper and lower sheaths (410, 400) and the upper and lower inner sheaths (510, 500) by cutting and inserting immediately before insertion between the (410, 400). By minimizing the misalignment of the alignment position that can occur according to the pattern, the pattern formed on the release stage 600 is precisely aligned to the position where the respective air cell 420, air induction 520 and bypass 450 are formed. The reason for this is to reduce the occurrence of defects.

In addition, when cutting between the center of the upper and lower endothelial (510, 500), that is, between the pair of release stage 600, the upper and lower endothelial (510, 500) remaining between the pair of release stage 600 by removing Connected passage between the air injection path 440 and the air induction path 520 formed through the release stand 600 by having a pair of release stand 600 positioned at one edge of the cut upper and lower endothelial 510 and 500. May be directly connected to the air injection path 440 such that air injected through the air injection path 440 may be smoothly introduced into the air induction path 520.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

1 is an exploded perspective view showing the configuration of a cushioning packaging material having an air injection passage formed with a bypass according to a first embodiment of the present invention;

Figure 2 is a perspective view showing the configuration of a buffer packaging material having an air inlet passage formed with a bypass according to a first embodiment of the present invention.

Figure 3 is a plan view showing the configuration of a cushioning packaging having an air inlet passage formed with a bypass according to a first embodiment of the present invention.

Figure 4 is a plan view showing another configuration of the mold release band constituting the cushioning packaging having an air inlet passage formed with a bypass according to a first embodiment of the present invention.

5 is a view showing a state in which air is injected into the buffer packaging material having an air inlet passage formed with a bypass according to the first embodiment of the present invention.

6 is a cross-sectional view taken along line A-A 'of the cushioning packaging material shown in FIG.

7 is a cross-sectional view taken along line B-B 'of the cushioning packaging material shown in FIG.

8 is a cross-sectional view taken along the line C-C 'of the cushioning packaging material shown in FIG.

Figure 9 is a perspective view showing the configuration of a buffer packaging material having an air inlet passage formed with a bypass according to a second embodiment of the present invention.

10 is an exploded perspective view showing a manufacturing process of a cushioning packaging material having an air inlet passage formed with a bypass according to a second embodiment of the present invention;

<Description of main parts of drawing>

100: lower jacket 110: upper jacket

112: longitudinal fusion section 114: first lateral fusion section

116: second lateral fusion 118: third lateral fusion

120: air cell 140: air injection path

142: air inlet 150: bypass

200: lower endothelial 210: upper endothelial

220: air induction path 300: releasing band

Claims (7)

Lower sheath; A lower endothelial overlapping an upper portion of the lower outer shell, wherein a upper end of the lower outer shell has a release band formed transversely along a shear edge; An upper endothelial superimposed on an upper portion of the lower endothelial and partially fused with the lower endothelial to form a plurality of air induction paths; Overlying the upper endothelial and the lower outer shell, and partially fused with the upper endothelial, lower endothelial and lower outer shell to form a plurality of air cells each having one of the plurality of air inlets therein, An upper envelope forming an air injection passage communicating with the plurality of air induction paths on a plurality of air cell front ends; Consists of including The release band formed at the upper end of the lower endothelial is formed at a position at which the air injection path and the air induction path are connected between the air injection path and the air cell, thereby communicating the air injection path and the air induction path. And a passage configured to communicate with the air injection passage and the respective air induction paths, respectively, and to form a bypass configured to communicate with the outside at one end thereof. When the air is excessively injected therein is provided with an air injection passage formed with a bypass characterized in that by adjusting the internal pressure by the air injection by discharging the over-pressure air inside the air injection path to the outside through the bypass Buffer packaging. The method of claim 1, The upper endothelial, A cushioning packaging material having an air injection path formed with a bypass, characterized in that configured to be in close contact with the upper sheath. The method of claim 1, The release band, The rectangular or elliptical pattern forming a plurality of passages connecting the air inlet and the plurality of air induction paths, and the narrow band-shaped pattern forming a bypass connecting the plurality of passages alternately. A cushioning packaging material having an air injection path formed with a bypass, characterized in that formed. The method of claim 1, The release band, It is formed in a bar-shaped pattern formed with a plurality of perforations at regular intervals, In a portion where no perforation is formed, a plurality of passages are formed to connect the air injection path and the plurality of air induction paths, respectively, and in the portion where the plurality of perforations are formed, a bypass connecting the plurality of passages to each other is formed. A cushioning packaging material having an air injection path formed with a bypass, characterized in that the configuration. The method of claim 1, The bypass is, A cushioning packaging material having a bypass-formed air injection path, characterized in that formed in a size of 0.1% to 20% of the width of the air injection path. Forming a release band along the lower endothelial upper shear edge; Superimposing an upper endothelial on top of the lower endothelial and inserting it between an upper and lower sheaths; Inserting a release surface below the lower endothelial, and partially fusion of the upper outer shell, upper endothelial and lower endothelial to form a plurality of air induction paths; Removing the release surface; Partially fusion of the upper shell, the upper inner shell, the lower inner shell and the lower outer shell forms a plurality of air cells each having one air induction path therein, and the plurality of air induction paths in front of the plurality of air cells. Forming an air injection path communicating with the air injection path, the bypass being connected to the air injection path and the plurality of air induction paths, respectively, and having one end configured to communicate with the outside; And Filling air into the plurality of air cells through the air induction path by injecting air into the air injection path; Consists of including, When the internal pressure of the air injection passage is excessively increased by the air injected into the air injection passage, the buffer having an air injection passage formed with a bypass, characterized in that for discharging the over-pressure air to the outside through the bypass Method for producing a packaging material for use. Forming a pair of release bands by a predetermined distance along an upper center portion of the lower endothelial; Superimposing an upper endothelial on top of the lower endothelial and inserting between the upper and lower sheaths while cutting the central portion of the upper and lower endothelials; Inserting a release surface under the lower endothelial and partially fusion of the upper and lower cut endothelial and lower endothelial to form an air induction path between the cut upper and lower endothelial pairs, respectively. Making a step; Removing the release surface; Partially fusion of the upper shell, the upper inner shell, the lower inner shell and the lower outer shell forms a plurality of air cells each having one air induction path therein, and the plurality of air induction paths in front of the plurality of air cells. Forming an air injection path communicating with the air injection path, the bypass being connected to the air injection path and the plurality of air induction paths, respectively, and having one end configured to communicate with the outside; And Filling air into the plurality of air cells through the air induction path by injecting air into the air injection path; Consists of including, When the internal pressure of the air injection passage is excessively increased by the air injected into the air injection passage, the buffer having an air injection passage formed with a bypass, characterized in that for discharging the over-pressure air to the outside through the bypass Method for producing a packaging material for use.

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